Be mindful of your surroundings; Take care not to cause any harm or discomfort for those around you; Respect mosques as places where Allah's name is mentioned often; Spit either on your left side or under your left foot .

The Prophet Muhammad taught us an important lesson about etiquette when he saw some sputum on the wall of a mosque. He showed us that we should be mindful of our surroundings and not spit in front of ourselves or to the right, but rather we should spit either to the left or under our left foot. This hadith teaches us that it is important for Muslims to be aware of their environment and take care not to cause any harm or discomfort for those around them. It also shows how much respect Muslims have for mosques as places where Allah's name is mentioned often, so they must take extra care when inside one.